---
type: Guide
title: "How to Read a Supplement Label: The Five Numbers That Decide Whether a Product Is Worth Buying"
description: "Serving size, elemental versus compound weight, proprietary blends, extract standardization and the lot certificate — the five places a label can mislead, worked through with real panels including 4Well's own."
resource: "https://4well.com/blogs/news/how-to-read-a-supplement-label"
tags: [label, guide, evidence]
timestamp: 2026-09-17T00:00:00Z
---

# How to Read a Supplement Label: The Five Numbers That Decide Whether a Product Is Worth Buying

Serving size, elemental versus compound weight, proprietary blends, extract standardization and the lot certificate — the five places a label can mislead, worked through with real panels including 4Well's own.

- Published: 2026-09-14
- Read: https://4well.com/blogs/news/how-to-read-a-supplement-label
- Every trial in the guide links to its PubMed record; the guide ends with a References list and the same set is exposed as `citation[]` in its BlogPosting markup.

## Related

- Topic: [Label literacy](okf-topics-label.md)

## Source

Summary written from the published guide (reviewed 2026-09-17). Guides are written by the formulation team from human trials; every dose claim links to its PubMed record; mixed and negative results are included; there is no clinician review and nothing on the site is medical advice.